body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #f5f7fa;
}

* {
  box-sizing: border-box;
}

.App {
  text-align: left;
  min-height: 100vh;
}

/* 全局样式重置 */
#root {
  min-height: 100vh;
}
